The glass is divided in two by a glass chamber divider, so that two beers can be enjoyed at once - mixing together in the drinker's mouth to create the perfect Black and Tan, or any other combination of ales you desire.

Conceivably it would also allow you to drink two beers separately at once - though in small quantities.

The Louisville-based artisan is clearly onto a winner - the glasses are $35 each but are already sold out. But he will still sell you four for $125, and if it prooves popular enough we imagine that more will be on the way soon.